Miniature rose variety ‘POULhyr’

ABSTRACT

A new miniature rose plant which has abundant, pink flowers and attractive foliage. The variety successfully propagates from softwood cuttings and is suitable for year round production in commercial glasshouses. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.

SUMMARY OF THE INVENTION

The present invention constitutes a new and distinct variety ofminiature rose plant which originated from a controlled crossing between‘POULhappy’, U.S. Pat. No. 9,483 granted Mar. 26, 1996, and an unnamedseedling. The two parents were crossed and the resulting seeds wereplanted in a controlled environment. The new variety is named ‘POULhyr’.

The new rose may be distinguished from its seed parent, ‘POULhappy’, bythe following combination of characteristics:

1. ‘POULhappy’ has more flowers than ‘POULhyr’,

2. The flower color of ‘POULhappy’ is orange-red, while the flower colorof ‘POULhyr’ is pink.

The new variety may be distinguished from its pollen parent, an unnamedseedling, created by the same inventors, by the following combination ofcharacteristics:

1. The unnamed seedling has orange-red colored flowers, while ‘POULhyr’is pink.

2. The unnamed seedling produces more flowers than ‘POULhyr’, howeverthe growth is more sensitive to disease.

The objective of the hybridization of this rose variety for commercialgreenhouse culture was to create a new and distinct variety with uniquequalities, such as:

1. Uniform and abundant flowers;

2. Vigorous and compact growth;

3. Year-round flowering under glasshouse conditions;

4. Suitability for production from softwood cuttings in pots;

5. Durable flowers and foliage which make a variety suitable fordistribution in the floral industry.

This combination of qualities is not present in previously availablecommercial cultivars of this type and distinguish ‘POULhyr’ from allother varieties of which we are aware.

As part of their rose development program, L. Pernille Olesen and MogensN. Olesen germinated the seeds from the aforementioned hybridization andconducted evaluations on the resulting seedlings in a controlledenvironment in Fredensborg, Denmark.

‘POULhyr’ was selected by the inventors as a single plant from theprogeny of the hybridization in Spring, 1995.

Asexual reproduction of ‘POULhyr’ by cuttings and traditional buddingwas first done by L. Pernille and Mogens N. Olesen in Fredensborg,Denmark in July, 1995. This initial and other subsequent propagationsconducted in controlled environments have demonstrated that thecharacteristics of ‘POULhyr’ are true to type and are transmitted fromone generation to the next.

BRIEF DESCRIPTION OF THE DRAWING

The accompanying color illustration shows as true as is reasonablypossible to obtain in color photographs of this type, the typicalcharacteristics of the buds, flowers, leaves, stems, and a plant of‘POULhyr’. Specifically illustrated in SHEET 1:

1. Stem showing branching and the attachment of leaves, buds, andpeduncles;

2. Flower bud, partially opened bud, and open bloom;

3. Flower petals, detached;

4. Sepals, receptacle, and pedicel;

5. Flowering stem as well as a bare stem exhibiting thorns;

6. Leaves.

DETAILED DESCRIPTION OF THE VARIETY

The following is a description of ‘POULhyr’, as observed in its growthin glasshouses in Half Moon Bay, Calif., in plants aged sixteen weeks.Color references are made using The Royal Horticultural Society (London,England) Colour Chart, 1995, except where common terms of color areused. For a comparison, several physical characteristics of the rosevariety ‘POULnye’, a pink rose variety from the same inventors describedand illustrated in U.S. Plant Pat. No. 9,483 and issued on Mar. 26, 2000and .

CHART 1 ‘POULhyr’ ‘POULnye’ Petal color, upper Red Group 52B. Red-PurpleGroup 62B. surface. Petal color, lower Red-Purple Group 58C. Red-Purplegroup 62C. surface. Petal arrangement Imbricated. Very double. Informal.Double. and petal count. 40 to 45 petals. 30 to 40 petals.

Parents: ‘POULhappy’×Unnamed seedling.

Classification:

Botanical.—Rosa hybrida.

Commercial.—Miniature.

FLOWER AND FLOWER BUD

Blooming habit: Continuous.

Flower bud:

Size.—Upon opening, 18 mm-22 mm in length from base of receptacle to endof bud.

Bud form.—Globular to ovoid.

Bud color.—As sepals unfold, Red-Purple Group 58C. Red-Purple Group 58Cat {fraction (1/4+L )} opening.

Sepals.—Length: 10 mm. Width: 5 mm. Coloration is Green Group 144A. Weakto moderate foliaceous appendages on three of the five sepals. Surfacesof sepals slightly pubescent. Stipitate glands present on margins ofsepals.

Receptacle.—Surface: With small hairs. Shape: Urn-shaped. Size: Small. 4mm (h)×5 mm (w). Color: Yellow-Green Group 144A.

Peduncle.—Surface: With limited numbers of fine hairs and stipitateglands. Length: 20 to 40 mm average length. Color: Yellow-Green Group144A. Strength: Strong.

Borne.—Generally with 3 to 4 buds per flowering stem.

Flower bloom:

Fragrance.—Light.

Duration.—As a pot plant, flowers last from 3 to 5 days.

Size.—Small for a 10 cm pot rose. Average flower diameter is 35-40 mmwhen open.

Form.—Shape of flower when viewed from the side: Upon opening, upperpart: Cupped. Upon opening, lower part: Flat. Open flower, upper part:Flattened convex. Open flower, lower part: Flat.

Petalage.—Average range: 40 to 45 petals under normal conditions withpetaloids.

Color:

Upon opening, petals.—Outermost petals: Upper Surface: Red Group 52B inmiddle and marginal zones; White Group 155C in basal zone. Reverse Side:Red-Purple Group 58C. Innermost petals: Upper Surface: Red Group 52 Aand B in middle and marginal zones; White Group 155C in basal zone.Reverse Side: Red-Purple Group 58 B and C in middle and marginal zones;White Group 155C in basal zone.

Upon opening, basal petal spots.—Outer Side: Yellow Group 4D. InnerSide: Yellow Group 4D.

After opening, petals.—Outermost petals: Upper Surface: Red Group 52B inmiddle and marginal zones; White Group 155C in basal zone. Reverse Side:Red-Purple Group 58 C and D in middle and marginal zones; White Group155C in basal zone. Innermost petals: Upper Surface: Red Group 52B inmiddle and marginal zones; White Group 155C in basal zone. Reverse Side:Red-Purple Group 58 C and D in middle and marginal zones; White Group155C in basal zone.

Upon opening, basal petal spots.—Outer Side: Yellow Group 4D. InnerSide: Yellow Group 4D.

General tonality: On open flower Red Group 52A. No change in the generaltonality at the end of the 4^(th) to 5^(th) day. Afterwards, generaltonality is Red Group 52 B and C.

Petals:

Petal reflex.—Innermost petals display little to no reflex. Outermostpetals are slightly reflexed.

Petal margin.—Point in center of margin.

Shape.—Deltoid.

Petaloids.—Quantity: 5 to 10.

Thickness.—Thick.

Arrangement.—Imbricated.

Reproductive organs:

Pollen.—Color: Yellow-Orange Group 14C. Quantity: Scant.

Anthers.—Size: Medium. Color: Yellow-Orange Group 14C.

Filaments.—Color: Yellow-Green Group 149C. Length: 4 to 5 mm.

Stigmas.—Slightly superior in location to anthers. Color: Green-WhiteGroup 157A.

Styles.—Color: Green-White Group 157A. Length: 6 to 7 mm.

Hips.—None observed.

PLANT

Plant growth: Vigorous and bushy. When grown as a 10 cm pot plant, theaverage height of the plant is 18 to 22 cm and the average width is 20to 22 cm.

Stems:

Color.—Young wood: Green Group 146B. Older wood: Green Group 146B.

Thorns.—Incidence: Few. Size: Average length: 2 mm-3 mm. Color:Greyed-Green Group 193C. Shape: Linear.

Surface.—Young wood: Smooth. Older wood: Smooth.

Length.—Under typical greenhouse production conditions, stem length is25 to 30 cm. Internode length varies from 8 to 10 cm.

Plant foliage: Normal number of leaflets on normal leaves in middle ofthe stem: 5 leaflets.

Leaf size.—65 to 80 mm (l)×45 to 50 mm (w).

Abundance.—Average.

Color.—Upper Leaf Surface: Green Group 137A. Lower Leaf Surface: GreenGroup 138B. Anthocyanin intonation: Location: Limited anthocyaninintonation on leaflet margins, underside of leaflets, and stipules.Color: Greyed-Red Group 179B.

Plant leaves and leaflets:

Stipules.—Size: 8 to 10 mm. Color: Green Group 137B. On plants grown inhigh light conditions, juvenile stipules with intonations of Greyed-RedGroup 179B.

Presence of stipitate glands: Limited numbers on margins.

Petiole.—Length: 12 to 16 mm. Color: Green Group 137B. Underneath:Limited stipitate glands and small prickles.

Rachis.—Color: Green Group 137B. Underneath: Limited stipitate glandsand small prickles. Margins: With stipitate glands.

Leaflet.—Edge: Finely serrated. Shape: Ovate. Other: Matte finish. Onplants grwon in high light conditions, undersides and margins ofjuvenile leaflets with intonations of Greyed-Red Group 179B.

Disease resistance: Average resistance to mildew, black spot, andBotrytis under normal growing conditions in Half Moon Bay, Calif.

Cold hardiness: ‘POULhyr’ has been found to be resistant to damage fromcold, heat and drought damage in USDA Zone 7.

We claim:
 1. A new and distinct variety of rose plant of the miniatureclass, substantially as herein illustrated and described as a distinctand novel rose variety due to its abundant, pink flowers, vigorous andbushy growth, year round flowering under glasshouse conditions,suitability for production from softwood cuttings in pots, and durableflowers and foliage which make the variety suitable for distribution inthe floral industry.